Brake



' P. BROWN, DECD.

M. 1. BROWN. EXECUTRIX.

BRAKE- APPLlCATlON FILED NOV. 14, 1916- '1 340,321 Patented May 18, 1920.

'3 SHEETS$HEET 1.

3 SHEETS-SHEET 2.

Patented May 18, 1920.

P. BROWN, DECD. v4.1. BROWN, zxacumx.

. BRAKE.

APPucAnou FILED N.0V.14v, 1.916. 1,340,321

I I MW! I 4 1 is 5 TTORNE Y S m .fl. M ,1 i V. v -4 P. BROWN, DECD.

m1. BROWN. ExEcumx.

BRAKE. APPLICATION FILED NOV|I4, I916.

Patented May 18, 1920- 3 SHEETSSHEET 3.

mvmron 1 A TTOR/VE in said casing ma UNITED STATES PATENT OFFICE.

I PERRY BROWN, 01 CORAOPOLIS, PENNSYLVANIA; MARGARET BROWN EXEGUTRIX 0F MID PERRY BROWN, DECEASED.

BRAKE.

Specification of Letters Patent.

Application flledNovember 14, 1916. Serial No. 131,316.

To all whom it may concern:

Be it known that I, PERRY BROWN, a citizen of the United States, and a resident of Coraopolis, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Brakes, of which the following is a specification. t

This invention relates to brakes for 'railway cars and more particularly to hand operated brakes. The invention relates more particularly to a ratchet brake on the order of those shown in my United States Patents Nos. 1,185,974 and 1,185,977 and it will be hereinafter more particularly described and then definitely claimed.

In the drawings accompanying and forming part hereof and which represent the preferable but not necessary embodiment of m%invention igure 1 is a perspective view of a brake made in accordance with my invention, secured to the end of a car wall.

Fig. 2 is a vertical longitudinal section of the brake.

Fig. 3 is a sectional detail.

Fig. 4 is a vertical section of the brake showing the parts in their locked positions.

5 is also a vertical central section showing in full lines the brake in the position for operation, and in dotted lines the position the handle will take at its extreme up r movement. 7

eferring now to the details of the drawings by numerals: 1 represents in conventional form the end wall of a car to which my brake may be applied. The brake proper may be secured to either side of this wall and in its preferable embodiment consists of a casing 3 having lugs 4 by which be bolted to said car wall 1, as illustrate The casing is preferably open at each end, and if open at each end the casing is closed by two caps 6 and 7, a central bolt8 passing through the casing and securing the cap or caps thereto. The casing. is preferably provided with two partitions or interior walls 10 and 12 having central :1 rtures which provide bearings for a chain drum 14 through which passes the aforesaid bolt 8. This drum is made of the shape shown best in Figs. 2 and 3 and is therefore provided with circumferential grooves for the brake chain 16. In close proximity to the first of these grooves or corrugations is formed a lug l8 and the drum at this point is cut away to the shape shown in Fig. 3 and the lug is provided with a recess 19 through which is passed the shank of a hooked bolt 20 to which the first link of the chain 16 is secured. Formed on or connected to the drum 14 are two sets of ratchet teeth 22 and 24, the ratchet teeth 22 being at one end of the drum and the ratchet teeth 24 at the opposite end of the drum. Adjacent to these two sets of -ratchet teeth are two links 26 and 28 which may, if desired, be identical with those shown in 1 my aforesaid Patents Nos. 1,185,974 and 11,185,977. Therefore these links are provided with lugs .or projections 30 and 32 on' which are supported brake handles or levers 34 and 36, one of theselevers normally hanging in a downward position and the other in an upward position. One of these levers, that marked 34 in Figs. 4 and 5, is arranged to be on one side of the wall of the car while the other lever is designed to be upon the opposite side of the wall of the car.. To make it possible that one of these levers may be properly worked from the side of the car opposite to that to which the brake is secured, a slot 38 through w ich the lever 34 may be operated, the lever being bent as illustrated in Fig. 4 to permit it to pass through this slot. In order to close the slot, except for the space actually occupied by the brake handle, I provide a sliding plate 40 which is capable of being moved up and down as the handle is operated through the limits of the slot 38. The handle 34 is provided with a pawl 42 and with an arm 43, the latter normally closing the opening in the casing 3, and the pawl normally occupying the position shown in F ig. 4 where it is out of contact with the ratchet teeth 22 formed on or connected to the drum 14. Inasmuch as the lever or handle 34 is pivotally connected to the link 26, it follows that when the handle 34 is moved from the position shown in Fig. 4 to the position shown in full lines in Fig. 5, the pawl 42 will engage one of the ratchet teeth 22 and then as the handle or lever 34 is swung upward to the position shown in dotted lines in Fig. 5, the ratchet teeth will be thereby rotated to correspondingly rotate the chain drum 14 to apply the brake. Of course, as in my aforesaid patent, when the brake handle is released it will rovide the wall 1 with fall by gravity to its inactive position. The

companion operating lever 36 is preferably first movement causes the pawl 44 to engage the teeth 24 and then as said handle is moved downward on the link 28, the pawl is caused to rotate the ratchet teeth 24 and thereby correspondingly rotate the drum 14. It will thus be seen that when I employ two brake handles of the character shown in my drawings each of them is normally in an active position and each may be used independagainst accidental release,

ently of the other.

In order to hold the drum 14 from counter-rotation and yet to release it when it is desi. ed to release the brake, I provide a dog 50 which is adapted to engage either set of ratchet teeth but as illustrated in the drawings, it engages the ratchet teeth 22. This pawl is pivoted at 52 and is provided with.

an operating handle 54. The weight of this handle normally holds the dog 50 in contact with the ratchet teeth 22 and when it is desired to release the brake, the operator merely has to raise the handle 54 until the dog 50 is out of engagement with the teeth 22 when the brake will be released. A look ing device 56 is provided to lock this lever but this looking I device forms part of an application filed of even date herewith, November 14, 1916, Ser. No. 131,317, and claims thereto are therefore not made in this application. However, it will'be noted from an inspection of Fig. 1 that the upper end of the locking device is much heavier, owing to its greater thickness, than its lower end so that it will normally hang in the osition shown in Fig. 5 but it may be move to the position shown in Fig. 4 to form the lock. In orderthat the brake may be a plied from either side of the wall 1 throug the medium of either of the brake handles 34 or 36 and be released from either side of the car wall, I provide a lever 58 to co-act with the handle of the dog bracket 60 and the other end 61 of the lever passes through an opening in the end wall of the car so that when the operator desires to release the dog-'50 from the 0 posite side of the car on which the dog an its handle 54 are located, itisonly necessary to press the end 61 of the lever 58 downward, ,with either his foot or his hand, in order'to :.hove

the dog 50. from the ratchetteeth 22 to release the brake. i 1

It is desirable that one. of the brake han- 50. This lever 58 is pivoted at 59 on a- .said casing to close the same, a

dies 34 or 36, preferably that marked 36, be provided with a locking device. to-lock the handle in the inactive position so that it cannot. interfere with the operation of the brake from the other side of the wall of the car. To accomplish this purpose I provide the handle 36 with a cam lever '64 pivoted at 62'to the handle 36, this lever being provided with a cam 63 which, in the position shown in Fig. 4,locks against the exterior of the casing 3 and prevents the lever 36 from being moved downward. However,

when it is necessary to apply the brake by this lever 36the operator merely throws the locking lever 64 from the position shown in Fig. 4 to the position shown in Fig. 5 when the lever v36 is released and may then be used to apply the brakes.

From the drawings it will be seen that I have -.provided a simple form of brake in which there is a drum-with two sets of ratchet teeth, a

.handle being arranged to operate one set of ratchet teeth, and a holding pawl bei arranged to co-act with the other set 3 ratchet teeth, and that I have also provided a brake which can be made with two operatinghandles one for each set of ratchet teeth so that one handle ma be operated from one side of the end wa of a car and the other operated from the inside of the car.

It is obvious that modifications and variations may be made in the details of my brake without departing from the spirit of foregoing and accompanying my invention, the scope of which is set forth in the appended claims.

What I claim is:

1. In a brake, the combination of a casing adapted to be secured entirely uponone side of a car wall, a drum within said casing having ratchet teeth near opposite ends thereof, operating devices co-acting with said ratchet teeth to independently operate said drum to apply the brake, one of said operating devices adapted to extend through the wall of a .car, and a'dog coacting with one set of said teeth to prevent counter-rotation of said drum.

2. In a brake, the combination of a casin adapted to be secured entirely u n one si e of a car wall, a drum within sai casin having ratchet teeth near" opposite en thereof, said casin having openings at oposite ends thereo operating devices proecting' through said openings and co-acting with said ratchet teeth to independently rotate said drum 'to apply the brakes, one of said operating devices adapted to extend. through the wall of. a car, and a dog also pro PctiDg through an opening in the casing v to hold the drum from counter-rotation. the handle 54 outward and thereby release 3. In a brake, the combination-of a casing adapted to be secured entirely upon one side of a car wall, heads at opposite ends of said casing having ratchet teeth near Oppo: site ends thereof, said casin having openings at opposite ends thereo operating devices projecting through said opening co-acting with said ratchet teeth to independently rotate said drum to apply the brake, one of said operating devices adapted to extend through the wall of a car, and a dog also projecting through an opening in the casing to hold the drum from counterrotation.

4:. In a brake, the combination of a casing, a drum thereon, ratchet teeth at opposite ends of said drum, openings at opposite ends of said casing, an operating device projecting through one of said openings and co-actmg with one set of said teeth to rotate said drum and apply the brake, and 'a dog projecting through the other opening at the opposite end of said casing co-acting with the other set of ratchet teeth to prevent counter-rotation of said drum, heads at opposite ends of said casing, and a bolt passing through said heads, and through said drum and securing the parts together.

5. In a hand brake, the combination with v a chain tightening element having two sets of ratchet teeth thereon, means for support- 7 ing said element and its two sets of teeth on the same side of a car wall, an operating member located on the same side of said wall and associated with said element for rotating the same, and a second operating member having one end cooperating with the ratchet teeth on said element and having its other end extending through said wall and operable from the opposite side thereof.

6. In a hand brake, the combination with a chain tightening element having two sets of ratchet teeth thereon, means for supporting said element and its two sets vof teeth on the same side of a car wall, an operating member located on the same side of said wall and associated with said element for rotating the same, a second operating member having one end cooperating wit the ratchet teeth onsaid element and having its other end extending through said wall and operable from the opposite side thereof, and a'dog cooperating with said element to prevent colmter-rotation and operable from both sides of said car wall.

7. In a braking mechanism for railway cars and the like, the combination with a chain tightening element rotatably mounted, and means for supporting said element on one side of the wall of said car, of an operating lever disposed on one side of said wall for rotating said element, a second operating lever for rotating said element and adapted to be extended through said wall for operation on the opposite side, both ofsaid leversbeing oscillatable in planes perpendicular to the wall of the car.

8. In a hand brake, the combination with and" the same side of a car wall, an operating member-located on the same side of said wall and associated with said element for rotating the same, a second operating member having one end cotiperating with the ratchet teeth on said element and having its other end extending through said wall and a operable'from the opposite side thereof, and

a device for locking one of said operating members inactive.

9. In a brake, the combination of a casing, a drum thereon, ratchet teeth at opposite ends of said drum, openings at opposite ends of said casing, an operating device projecting through one of said openings and co-acting with one set of said teeth to rotate said drum and apply the brake, a latch pivoted to said operating device and co-acting with the exterior of said casing to lock said device in an inactive position, and a dog projecting through the other opening at the opposite end of said casing and co-acting with the other set of ratchet teeth to prevent counter-rotation of said drum.

10. In a brake, the combination of a casing, a drum thereon, ratchet teeth at opposite ends of said drum, openings at opposite ends of said casing, an operating device proj ecting through one of said openings and coacting with one set of said teeth to rotate said drum and apply the brake, a latch pivoted to said operating device and having 1 a cam co-acting with the exterior of said casing to lock said device in an inactive po-. sition, and a dog projecting through the other opening at the opposite end of said casing and co-acting with the other set of ratchet teeth to prevent counter-rotation of said drum.

11. In a brake, the combination of a casing, a drum therein, ratchet teeth near one end of said drum, an operating device having a pawl co-acting with said ratchet teeth to rotate said drum to apply the brake and being capable of movement to an inactive position, and a member supported by said operating device and co-acting with said casing to lock the former in its inactive position.

12. In a brake, the combination of a casing, a drum therein, ratchet teeth near one end of said drum, an operating device having a pawl co-acting with said ratchet teeth to rotate said drum to apply the brake and being capable of movement to an inactive position, and a lever pivoted to said operating device and having a cam for locking said device in its inactive position.

13. In a brake, the combination of a wall,

a casing adapted to be secured to said wall,- a drum in said casing, an operating device on each end of said casing for operating said drum, and both of said. operating devices co-acting with the drum on one side of said wall and one of said operating devices having a part passing through an openin in said wall and operable from the otherslde of'the wall.

14. In a brake, the combination of a'wall, a casing adapted to be secured to said wall, a drum in said casing, an operating device on each end of said casing for operating said drum, and both of said operating devices co-acting with the drum on. one side of said wall and oneof said operatin devices having a part passing throug an opening in said wall and operable from the other side of the wall, and a dog operable from both sides of said walladapted to hold said drum from counter-rotation.

15. In a brake, the combination of a wall, a casing adapted to be secured to said wall,

a drum in said casing, an operating device a drum in said casing, ratchet teeth on opposite ends of said drum, an operating device at each end of said casing adapted to coact with said ratchet teeth, and capable of movement to inactive position, and one of said operati devices being on one side of said wall arid the other having its handle passing through-an opening in said wall and operable from the other side of the wall.

17. In a brake, the combination of a wall, a casing adaptedv to be secured to said wall, a

drum in said casing, ratchet teeth on opposite ends of said drum, an operating device at each end of said casing adapted to 00- act with said ratchet teeth and capable of movement to inactive positions, and one of said operating devices being on one side of said wall and the other having its handle passing through an opening in said wall and operable from the other side of the wall, and a dog operable from .both sides of said wall tation. Y

18. In a brake, the combination of a wall, a casing adapted to be secured to said wall, a drum in said casing, ratchet teeth on opposite ends' of said drum, an operating device at each end of said casing adapted to co-act with said ratchet teeth and capable of movement to inactive positions, and one of said operating devicesbeing on one side of said wall and the other passing through an openin in said wall and operable from the other si e of the wall, and a dog operable from both sides of said wall adapted to hold said drum from counter-rotation, and a device for locking one of said operating devices in an inactive position.

19. In'a brake, the combination of a wall, a brake secured thereto, a brake drum, ratchet .teeth on opposite ends of said drum, operating devices at opposite ends of said drum having-pawls co-acting with said ratchet teeth when in'one position and 1 free from said-teeth when said operating devices are moved to inactive positions, and one of said operating devices being on one side of said wall and the other having its handle passing through an opening in said wall and operable from the other side of the wall.

20. In a brake, the combination of a wall, a brake secured thereto, a brake drum, ratchet teeth on opposite ends of said drum, operating devices at opposite ends of said .drum having pawls co-acting with said ratchet teeth when in one position and free from said teeth when-said operating devices are moved to inactive positions, and one of said operating devices being on one side of said wall and the other having its handle passing through an opening in said wall and operable from the other side of the wall, and a dog operable from both sides of said wall adapted to hold said drum from counterrotation. 4

21. In a brake, the combination of a wall, a brake secured thereto, a brake drum, ratchet teeth on opposite ends of said drum, operating devices at opposite ends of said drum having pawls co-acting with said ratchet teeth when in one position and free from said teeth when said operating devices are moved to inactive positions, and one of said operating devices being on one side of said wall and'the other assing through an opening in' said wall and operable from the other side of the wall, and a dog operable from both sides of said wall adapted to hold said drum from counter-rotation, and a device for locking one of said operating devicesratchet teeth, operating handles supported adapted to hold sa1d ,dr um from counter-rofrom said links and havlng pawls co-acting with said teeth, said handles bein capable of movement to free said pawls om said ratchet teeth, and" one of said operating devices being on one side of said wall and the other having its handle assing through an opening in said wall an operable from the other side of the wall.

23. In a brake, the combination of a wall, a brake secured thereto comprising a casing, a brake drum therein having ratchet teeth at opposite ends thereof; links adjacent said ratchet teeth, operating handles supported from said links and having pawls co-acting with said teeth, said handles being capable of movement to free said pawls from said ratchet teeth, and one of said operating devices being on one side of said wall and the other having its handle passing through an opening in said wall and operable from i the other side of the wall, and a dog operable from both sides of said wall adapted to hold said drum from counter-rotation.

24. In a brake, the combination of a wall, a brake secured thereto comprising a casing, a brake drum therein having ratchet teeth at opposite ends thereof, links adjacent said ratchet teeth, operating handles supported from said links and having pawls co-acting with said teeth, said handles being capable of movement to free said pawls from said ratchet teeth, and one of said operating devices being on one side of said wall and the other passing through an opening in said wall and operable from the other side of the wall, and a dog operable from both sides of said wall adapted to hold said drum from counter-rotation, and a device for locking one of said operating devices in an inactive position. Y

25. In a brake, the combination of a car wall, a casing, heads at opposite ends thereof, a drum in said casing havingratchet teeth on opposite ends thereof, an axle pin passing through said heads and said drum and connecting said parts together, an operating device at each end of said casing for actuating said drum, and one of said operating devices being on one side of said wall and the other passing through an opening in said wall and operable from the other side of the wall.

26. In a brake, the combination of a car wall, acasing, heads at opposite ends there- 'of, a drum in said casing having ratchet teeth on opposite ends thereof, an axle pin passing through said heads and said drum and connecting said parts together, an operating device at each end of said casing for actuating said drum, and one of said operating devices being onv one side of said Wall and the other passing through an opening in said wall and operable from the other side of the wall, and a dog operable from both sides of said wall adapted to hold said drum from counter-rotation.

27. In a brake, the combination of a car wall, a casing, heads at opposite ends thereof, a drum in said casing having ratchet teeth on opposite ends thereof, an axle pin passing through said heads and said drum, and connecting said parts together, an operating device at each end of said casing for actuating said drum, and one of said" operating devices beingon one side of said.

Wall and the other passing through anopenin in said wall and operable from both sides of the wall, and a dog operable from both sides of said wall adapted to hold said drum from counter-rotation, and a device for locking one of said operating devices in an inactive position.

28. In a brake, the combination of a wall,

the wall. 29. In a brake, the combination of a wall,

a casing, heads on opposite ends thereof, a drum in said casing having ratchet teeth at opposite ends thereof, links in proximity to said ratchet teeth, an axle pin passing through said heads said links and said drum and securing said parts together, operating devices on opposite sides of said drum having pawls co-acting with said ratchet teeth, and one of said operating de- Vices being on one side of said wall and' the other passing through an opening in said wall and operable from the other side of the wall, and a dog operable from both sides of said wall adapted to hold said drum from counter-rotation.

30. In a brake, the combination of a wall,

a casing, heads on opposite ends thereof, a. drum in said casing having ratchet teeth at opposite ends'thereof, links in proximity to said ratchet teeth, an axlepin passing through said heads said link and said drum and securing said parts together, operating devices on opposite sides of said drum having pawls co-acting with said ratchet teeth, and one of said operating devices being on one side of said wall and the other passing through an opening in said wall and operable from the other side of the wall, and a dog operable from both sides of said wall adapted to hold said drum from counterrotation, and a device for locking one of said operating devices in-an inactive position.

In testimony whereof I afiix my signature in presence of two witnesses.

PERRY BROWN. 

